Reenforced soap cake



April 9, 1935. J, s STONE 1,997,474

REENFoRoEn soAP CAKE Filed May 51, 1955 INVENTOR Patented Apr. 94, 1935V UNITED STATES` PATENT OFFICE REENFORCED SOAP CAKE John Stone Stone, San Diego, Calif.

Application May 31, 1933, Serial No. 673,614

I 1 claim. (Cl. s'z-zs) The invention relates to an improvement in of color or design may be added to its relatively the art of soap manufacture and more speciflgreater mechanical strength. cally to soap which is formed and dispensed in Thus when economy only is the object, an oblong cakes. oblong core of wood, cement, of wine bottle glass,

5 An oblong cake of soap is extremely convenior of like cheap material may be used, while when 5 ent, particularly for toilet and bath purposes, but the relatively strong oblong core is to serve as a `in the use thereof the serious disadvantage retalisman, ornamental celluloid or like decorasults that, after three-quarters or four-fifths of tive material may be used in its construction. the cake has been consumed, the thin remaining When cement is used for the core, or wood of a l0 oblong cake breakes in two and these two porous or spongy character, an advantage rel0 remnants of the cake lack all the conveniences sults in that an improved bondis secured between possessed by the original cake. the surface of the core and the adjacent part of Various ways of making secondary uses of the cake by compressing the cake so as to parthese soap remnants may be adopted as measures tially extend a portion thereof into the external of economy, but none of these is truly economical portion of the core, thus leaving the remaining l5 since the remnants must then be made to serve portion of the pores unoccupied so as to provide purposes more conveniently performed by the air space to add buoyancy to the cake as a cheaper soap powders or liquid soaps. whole.

Impartial experiments show that in the case In some instances it may be found expedient of one of the most widely used cake soaps, the to impregnate the core when it consists of a 20 cake breaks in two by the time it is only threewoody porous nature with perfume and permit fourths used. Thus the wasteful or inconvenithe perfume to permeate the detergent surent soap remnants in this case contain of rounding the core. Thus several different kinds the soap the purchaser originally paid for. 0f perfumed Cleansers may be had at one making.

25 The object of my invention is to provide a soap Even when it is desired to have the core or- 25 cake in the use of which these wasteful, annoying namental, such inexpensive material as cement and inconvenient soap remnants are not promay be used, but in Such CaSeS the Core Will be duced. suitably stained or painted. Cement cores are Another object of my invention is to provide Preferably Covered With a layer 0f Paint t0 ler1- an oblong soap cake, so constructed and comhance their smoothness to the touch. The core 30 posed that its purchaser may have the use, in cake '1S preferably given a markedly distinctive color form, gf 9,11 the soap he pays f0r in order thatl it may not be confused with the A further object of my invention is to provide Soap Which conStituteS the Soap Cake. 4 a soap cake, among or otherwise, containing a The invention will be best understood by retalisman redeemablein trade by the purchasen ferrlng to the accompanying drawing illustrat- 35 A still further object ,of my invention is to lng the use of e relatively Strong oblong Core provide an oblong soap cake fortified or strengthat the Centre 0f a Cake of Soap whereinened at its core so that it will not tend to break Fig- 1 iS a' Perspective VieW of a Cake of Soap, into pieces after partial use, a corner portion of the cake being broken away 40 Yet another object of the invention is to shape to disclose a part of the core provided with the 40 the buoyant, cake-reenforcing core in an iminvention' proved manner thereby to effect a more complete Fig' 2 is a cross section taken on une 2 3 0f and certain economizing of the soap. Fig' 1 These several objects are attained through oflige is a cross section showing another form 45 the formation of an oblong soap cake about a s h central core of a material mechanically stronger conge f'dasf t gsoap frticlm fthe trtlse is than the soap used in forming the cake. This une 2r 3 f gig e p an se "n o core may be made of any material that is Referrm in detail to the r in mechanically stronger than the soap which consoap body may be of the cgngntincgrf stitutes the cake, but when economy is the motive ter as Shown in Fig 1. As shown in Figs 1 anfd 2 1n using the inventlon' the core material must a hollow core 5 is embedded in the central poralS 0 be Cheaper than the Soon, While When the tion of the cake, said core being of greater length ObJeCt 1n Using the Invention 1S Such aS that 0f than width and extending longitudinally of the providingatalisman within the soap cake, beauty. cake. This core is made sufliciently strong to celluloid or other suitable material.

reenforce the cake and safeguard against breakage after a considerable portion of the cake has been consumed.

The core is shown of greatest thickness at its mid-length and is tapered to relatively thin edge portions 6. Said core/may be constructed of It is provided with an interior hollow space 1, sufciently large to insure buoyancy for the cake as a whole.

In Fig. 3 is shown another kind of core 5a which though it may be shaped the same as the core 5, is made of porous wood and is therefore buoyant like the core 5 although not provided with a distinct internal air space.

'I'he soap enters the end portions of the pores 8 and thus a suitable bond is furnished to cause the soap to adhere to the core.

'Ihe internal portions of the pores provide air spaces which add to the buoyancy o1' the cake.

The adhesive bond thus provided between the core and the soap prevents the latter from breaking up into fragments even when nearly all the soap has been consumed on the core.

'I'he core 5a is not only provided with the pores 8 but is also furnished with a roughened surface which causes the soap to adhere more rmly to its surface.

Both the kinds of cores shown may be used as talismen after the soap has been used up.

Both forms of core are of a flattened character and are surrounded by edge portions which taper uniformly to approximately an acute angle, thus insuring that no unused streak of soap will remain around the thinned portion of the core.

In either casethe soap is gradually dissolved away until the fortifying core is all that is left. This core is then discarded without compunction by the user of the soap, unless the fortifying core be designed as a talisman entitling its owner to redeem it in trade, in which case, it is saved and a collection of such cores made until the number secured is great enough to entitle the possessor to a privileged trade. y

Or the core 5 or 5a may be made of a detergent possessing the cleansing qualities vof the body 4. In the later event the core would be constructed more firmly, as for example like castile soap, and would be of less solubility than the remaining portion of the cake.

I claim:

A cake of soap having embedded therein a porous buoyant reenforcing core, saidv core having transverse non-communicating passageways extending from one extremity to the other, the extremities of each passageway containing portions of the soap which forms seals for entrapping the air in the intermediate spaces and thus add to the buoyancy of the soap as a whole.

JOHN STONE STONE. 

